Bell for conduits



June 17, 1930. c. D.- HEALY BELL FOR CONDUITS Filed Aug. 9, 1926Inventorv @rnezz'usfl 5 Attorney.

50 end thereof, the chain 12 being sufliciently out a more detaileddescription thereof.

Patented June 17, 1930 I 1,765,156

UNITED STATES A CORNELIUS DENNIS HEALY, on mm-as. mama BELL FOR commasvApplication filed August 9,1926. Serial No. 128,284.

The present invention relates to what I longyto allow. the chain 15. tohang out of call a bell for a conduit, and has for its prin- 't-hebellattachment as is clearly indicated in cipal object to provide a devicewhich may be Fig. l inserted in the end of a conduit while the The ideaof this bell is to make a larger conduit is being encased in concretefor proentrance for the cable in the manhole. The 55.

viding a larger entrance for the cable so as :conduit is usually'aboutfour inches and the to prevent the lead from being chipped or hellaboutsixinehes, thereby givingthe coninjured in any Way. duit/a largerentrance and thus preventing Another very important object of the inthe:cablesheath from being chipped or invention lies in the provision of anattachijuredsin'a'ny way. When theficable sheath is 60 ment of thisnature which is exceedingly chipped, this indicates the loss of asection simple in its construction, inexpensive to oftca'bl'e which isgenerally about three hun; manufacture, strong and durable, efficientdred fe'etnlongk Sometimes *whenthe cable and reliable in use, andotherwise well adapt-,. is; being, drawn through the conduit, the I 1 edto the purpose for which it is designed. pulling wire breaks when it isnear the end With the above and numerous other ob- .of the conduit andthismakes itimp'ossible jects in view as Will appear as the descriptoattach another wire with which totcon tion proceeds, the invent-ionresides in cer- 1-tin-ue [togpull it through! This bell-f att'achtainnovel features of construction, and in ment makes it 'possible'tof-astenanotherwire 2 the combination and arrangement of parts to the pullingwire so as to continueto pull as will be hereinafter more fullydescribed said cable. through the conduit.- The sec- 7 and claimed.tions of cables. are sometimes three hundred In the drawings -,-feet andif the wire broke, it would take Figure 1 is a longitudinal sectionthrough considerable time to back the cable out, put

the attachment and a portion of a conduit, in a new, Wire, and, thenpull the cable in Fig. 2 is an end elevation thereof, .aigain. The baracross the inouthis "for-the Fig. 3 is another end elevation thereof,and purpose of-holding the bell, in.-place against Fig. 4 is a sectionalelevation thereof. the wooden form of the ymanhoilea vhile the Referringto the drawing in detail, itwill gc'oner'ete is being poured. Thiscan-beheld be seen that the numeral 5 denotes the usual in p-l'acevby anailorbolt while thec'oncrete 1: tubular conduit encased in concreteindiis beingwpouredaand therefore smakes itea-sicated at 6. Myimprovedattachment is desser toremovefrom the concrete." T he'Fcha-inignated generally by the letter B and inprovides armea'nsforipullingqthe bell loose chides a tubular frusto-conical body 7 hav-,from theconcreteq after-gthe conduit has. set

3 ing the larger end thereof fiaredoutwardly theremzehereuyithspullispapplitl at the '3 as is indicated at 8., w rear end of the bellto insure an even pull.

A cross bar 9 extends diametrically across Sometimes a thrust on thechain 12 will the mouth of the flared end 8 and flush with not loosenthe member B from the concrete the outer edge thereof. The cross bar 9is because it requires a radial movement. In

provided with an opening 9 for the purpose this latter case, a pointedbar is inserted of fixing the body to the concrete casting from thefront of the member, bearing form by clinching nails that projectfromagainst an outer end of the cross rod 9, with the form, in this opening.A cross bar 10 the point of the bar in opening 11. When extends acrossthe smaller end of the frustoupward pressure is exerted on the bar, the

conical tubular body 7 and has its intermemember B Will have a tendencyto rotate and diate portion offset inwardly and apertured free itselffrom the concrete. as at 11. A chain or other flexible element It isthought that the construction,,utility, 12 has a ring at one end as at14 circumand advantages of this invention will now scribing the bar 10and a ring 15 at the other be apparent to those skilled in this artwith- The present embodiment of the invention has been disclosed indetail merely by Way of example, since in actual pract1ce 1t attains thefeatures of advantage enumerated I as desirable in the statement of theinvention and the above description.

It is apparent that the changes in the details of construction, and inthe combination and arrangement of parts maybe re-.

\ sorted towithout departing from the spirit or scope ofthe invention ashereinafter claimed, or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is 1'. A corefor forming a depression in concrete about the mouth'of a conduit thatis to be encased in concrete'comprising a hollow frusto-conical bodyhaving the smaller end adapted to be inserted in the end of a conduitwhile the concrete is being poured aboutosaid conduit, a barextendingacrossthe opening at the larger end of said body havingmeans thereonadapted for attachment to the form in which the concrete is poured, abar across the smaller end of the body and means secured to the lastmen- 7 tioned'bar and extending outwardly through the opening in thebody for pulling vthe body out of the concrete-after the latter has set.7

2. .A core for forming a depression in concrete about the mouth ofa'conduit that is to be encased in concrete comprising a "hollowfrusto-conical body having the smaller end adaptable to be inserted inthe end of a conduit While the concrete is being poured about saidconduit, a bar extending across the opening at the larger end of thebody and flush with'the edges at the end i thereof having an openingtherein adapted for clinchingnails that project from the form in whichthe concrete is poured, a bar across the opening-at the smaller end ofthe body, and a chain movably' connected at one end to thelast mentionedbar and ex- Q tending outwardly through the-opening in I the bodyfor'pullingsaid body out of the Yconcrete' after the latter has set.

7 In testimony whereof I afiix my signature.

CORNELIUS DENNIS

